Mason County, MI - In an ongoing Michigan OWI case, the crime lab's chief toxicologist admitted that the crime lab does not take into consideration the margin of error when determining blood alcohol levels in drunk driving cases.

Attorney Mike Nichols has been arguing that the blood test results are unreliable.

Although juries are allowed to consider evidence such as police officer observations and field sobriety test results, the chemical evidence is almost always the most important evidence in an impaired driving trial.

Thus far, despite their lack of accounting for potential error rates, the blood tests have been upheld in Michigan DUI cases. The Mason County hearing, which could change this, is schedule to reconvene on July 16.

Note: Mike Nichols is a member of DUIAttorney.com. He can be reached at 517-432-9000.